Dual-Gate Thin-Film Transistor-Based Multi-Parameter Sensor for Comprehensive Water Quality Monitoring in Aquatic Environments

This work presents a multi-parameter water quality sensor system based on dual-gate thin-film transistor (DG-TFT) for accurate aquatic monitoring, targeting pH, dissolved oxygen (DO), and temperature. The sensor chip achieves low-cost, high-sensitivity performance, offering a compact alternative to traditional discrete modules that are bulky and costly. Integrated with temperature compensation algorithms, the final circuit system ensures precise measurements in dynamic environments.